After the discovery of Higgs: W here are we going ?
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After the discovery of Higgs:
Where are we going ?
Yifang WangInstitute of High Energy Physics, Beijing
Feb. 23, 2014, Tsinghua
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We live in a world described by the “Standard Model”
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The last piece of the “Standard Model” Higgs is discovered at LHC@CERN in 2012
30 years effort by: 5 Director-General’s of CERNTens of thousands scientists & engineersusing/developing cutting edge technologies
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This is a global effort of collaboration, technology, organization, …
A great boost to the development of our society and people: World-Wide-Web was invented during this process !
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Future: where to go ?• Higher energy• Higher precision
Linear colliders: ILC Circular Colliders
Precision @ e+e- colliderEnergy @ pp collider
Larger accelerators
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CEPC+SppC• CEPC+SppC was proposed in Sep. 2012 • Such a machine fits our strategic needs:
– Science (great & definite physics)– Timing (after BEPCII)– Technological feasibility (experience at BEPC & LEP) – Manpower reality (our hands are free after ~2020)
• Economical scale: – BEPC cost/4 y/GDP of China in 1984 0.0001– SSC cost/10y/GDP of US in 1992 0.0001– LEP cost/8y/GDP of EU in 1984 0.0002– LHC cost/10y/GDP of EU in 2004 0.0003– ILC cost/8y/GDP of Japan in 2018 0.0002– CEPC cost/6y/GDP of China in 2020 0.00005– SPPC cost/6y/GDP of China in 2036 0.0001
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An international machine • This is a machine for the
world and by the world• International kick-off meting
in Dec., 2013• “Center for Future High
Energy Physics (CFHEP)” is established in Dec., 2013– Prof. Nima Arkani-Hamed is
the director– A seed for an international lab Organized and managed by the community
• Internationalization: A road for future
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We are not alone• CERN started the Future Circular
Collider effort since last year• FCC kick-off meting in Feb., 2014• ICFA statement On Feb. 21, 2014 at
DESY:ICFA supports studies of energy frontier circular colliders and encourages global coordination
ICFA: international committee for Future acceleratorshttp://www.fnal.gov/directorate/icfa/
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Timeline (dream)• CPEC
– Pre-study, R&D and preparation work: 2012 - 2020– Construction: 2021-2027– Data taking: 2028-2035
• SppC– Pre-study, R&D and preparation work: 2012 - 2035– Construction: 2035-2042– Data taking: 2042 -
A plan for 40 years !
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It is difficult but very exciting
Let’s work for our dream